Lubricating device for axle journals



Oct. 30 1923'. l

w. HoLToRP LUBRICATING DEVICE FOR AXLE JOURNALS Filed May 22. 1922 Patented @et 30', 1923..

PAT-.ENT ori-"ics,

'WILHELM HOL'IORPy OF HAMBURG, GERMANY.

LUBRicArrNG nnvrcii son linnn JOURNALS.

Application ieanay 22, i922. seriai* N. 562,661.

To all whom t mag/concern Y Be it known that I, VILHELM HoLToRP, a citizen of the German Republic, and resident of Nr. 41 Wa-ndsbeckerchausse, Hamburg,

Devices for Axle Journals; and I do hereby declare the following to beafull, clear, and exact description of the invention, simh as will enable others skilled in the art to which it appertains to malte and use the saine, reference being had to the "accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification. i

rihe present invention relates to boxes i axle-journals of locomotive-engines, i` ilwayand tramway-cars and the like, and more particularly refers to improvements in lubricating ,devices provided in auch boxes for lubricating the journal. The object of the improvements being to pro'- cure V'a lubricating device which is simple in lconstruction and ecient in use, and which on the one hand ensures a vthorough lubrieating of the journal and 'on the other hand prevents any loss or waste of oil.

W'ith the known journal-boxes a con'-v siderable loss or waste of oil Vis attributed 4to the tendencyT of the Voil to travel to the hollow of the journal. ByV so doing the oil passes outwards through theaxle` hole in the journal-box and gets lost.

rlhe present invention not only renders possible an abundant lubricating of theA journal according to an oilY circulating system by means of a lubricating shoe and a small oil supply orfeeding'roller, which are'pressed against the journal, but` also prevents at the same time al waste or loss of oil in the manner stated above,l-by providing in the brassof the journal an 'oil groove or oil grooves anda recess or re` cessesv which check the lateral travelling of the oil in excess on the surface of the journal and direct the thereby retained oil again to the oil container or to the lubricating shoe. And with this end in view my invention consists in certain novel features of construction and combinations of parts as will be hereinafter fully described Germany, have invented `certain new` and useful Improvements in Lubricating' andpo'inte'd out in the claims withy reference to the drawingfin which:

Fig. 1 isa cross sectional and Fig.'.2a longitudinal sectional elevation ofl a locomotive journal-box;

3 is a longitudinal sectional elevation and Fig. 4 an end view, partly in section, of an ordinary car journal-box; j

Fig. 5 shows on a larger scale a vertical cross section and Fig. 6l a veiticalflongitudinal section of the lubricating shoe on the line A+B of Fig. 5. j i

Similar numerals of" reference refer to Isimilar parts throughout the figures.

AReferring toFigs. 1, 2, 5 and 6 there is arranged in well known manner in a frame-like .box 1 a brass 2 and below the latter an oil container 3. At the upper end ofthe box" 1 there is provided another oil container 4s. This upper container is in communication through tubes 6 and 7 which register with bores 6a and 7L of the brass, with the inner surface of contact of the said brass. i

lNithin the 'lower or main oil container 3 is 'arranged alubricating shoe 8 having in its central part 4a perforation 8a and bein pressed against the lower side of the aXlejournal'l() by a pressure spring 9. The shoefS has at its'underside a box-like castingll the longitudinal walls of which are 4provided `with slots 12 for the reception of `the shaft 13 of an oil feeding or supply roller 111. As the ends of the shaft 13 en- `gag'ing the slots 12 are leveled or squared,

the Isaid "shaft is prevented from turning,

but may move up and down to a certain degree in the said `slots.`` The projecting ends ofthe shaftfl are supported by means of springs 15 Vand 16, the ends of which are eral recesses 21 22 respectively, each with an edge or border 23, 24 respectively, running obliquely upwards from without to the interior. j Y Y Referring to Figs. 3 and 4 showing a journal-box 25 for the journal 28 of a carl axle there is arranged in the' said" box a brass 27, whilst the lower part of the box is constructed to forni an oil container 26. The lubricating shoe 8 is identical to that shown in Figs. 1, 2, 5 and 6 and is pressedv against the journal 28 likewise by apressure spring 9. The brass, however, has a somewhat modified form in that there is provided only at one endva groove 2O with a lateral recess 22 having an oblique orY sloping bordering edge 24. At the other end of the brass suchI a contrivance is not needed, as here the oil' can not get lost.

The function of the improved lubricating device is as follows: j

l/Vhen the axle-journal revolves the supi ply roller 14 being pressed with yielding Vars pressure against. the said journal, is rotated by the journal `and supplies oil up from the oil container to the journal as indicated by the arrows in Fig. 6. The thus supplied oil distributes itself by means of the oil' pocket 8b provided in the shoe 8, over the entire length of the journal. The oil in excess is skimmed or scrapedA off from Y the revolving journal by the edges or bor ders of the slice contacting the surface of the journal (F, ig. 5) and drops down into the lower oil container. By this means a continuous circulation of the oil is obtained and at all times an abundant oil supply up from the container to the journal ensured. The oil arriving nearthe ends of the brass and tending to drip out laterally, meets, or strikes yagainst the edges 23 24 respectively'of the brass andl is forced by these edges, due tothe revolution of the journal, into the grooves 19` and 20. These grooves give the oil streams, as is obvious from Fig..2, such directions that on further revolution of the journal they will meet the scraping edges of theshoe 8. The parts of the brass outside the grooves 19 and 20 willfnevertheless be oiled sufficiently, as the borders 23 and 24donot scrape off the oil completely but only the oil in excess. n

Besides the circulatinglubrication pointed out above an additional fresh yoil lubrication may be effected, if desired orrequired, from the upper oil container 5 (Figs. 1 and 2)V throughy the tubes 6, 7 and bores 6a and 7a. This lubricatingcontrivance may also serve as an auxiliary or reserve-lubricator in case the oil supply roller 14 VhasV 1 portion extending from the lower end ofthe rass to the groove, the outer edges of said aY brass portions extending obliquely upward to-V ward the groove and toward the middle of the brass to remove excess oil from the revolving journal and prevent the oil from going to the ends of the brass.

2. In a car journal bearing, a brass having one or more obliquely directed oily grooves extending circumferentially of the brass and having enlarged ends formed by an upwardly inclined edge extending from substantially the end of the brass to the groove, an oil `distributor for `contacting with the lower surface of the journal and to which said grooves are directed, whereby said distrib-uter and grooves cooperate to remove surplusI oil from the journal. v

3. In a car journal bearing, a brass having aV circumferential inclined groove in the bearing face thereof having enlarged ends formed by edges extending substantially from the end of-the brass and oppositely in! clined tothe direction of the groove, thereby forming widened entrances, in combination with a shoe for contacting with the bottom of the journal, a roller mounted to supply oil to thershoe, said shoe operating to spread the oil from the roller over the extent of said shoe-that is in contact with the journal, said groove vhaving its one continuouswall directed toward said shoe the edge of which scrapes offI the oil :directed thereto.

4'. Ina car journal bearing, a brass having j circumferential grooves diverging from one another at both ends from the edges of the. brass and having their lower ends enlarged,`

one wall of each enlargement being continuous indirection withV the groove to the brass edge and theother Youterwall being sharply inclined thereto and directed upwardly from the edges of the brass toward the middle thereof. y f

In testimony that I claim the foregoing Yas my invention, I have signed my name WILHELM HoLToRP.

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